Search Results (180)

Surgical site infections (SSIs) remain a significant complication in spine surgery, especially in instrumented procedures with long operative times. Although guidelines recommend cefazolin as the first-line agent due to its efficacy against Staphylococcus aureus, predictable pharmacokinetics, and safety, its real-world practice is highly variable, with inappropriate and prolonged regimens reported across Europe. Vancomycin is often used as the first choice of therapy empirically and without screening, exposing patients to risks such as delayed infusion, nephrotoxicity, and the emergence of vancomycin-resistant enterococci (VRE).This review assesses the present function of vancomycin in relation to cefazolin for spinal prophylaxis and examines wider trends in the misuse of surgical antibiotic prophylaxis, which were identified through PubMed and Scopus searches. Evidence from randomized and prospective studies consistently supports cefazolin as the preferred prophylactic agent in clean spinal surgery. Observational data suggest that adjunctive or topical vancomycin may reduce infection rates in selected high-risk or revision cases, though the results are inconsistent and frequently limited by retrospective designs and heterogeneous outcome reporting. Importantly, the most rigorous randomized controlled trial found no benefit of intrawound vancomycin over the placebo. A small number of available investigations in vancomycin use with major design limitations have resulted in no significant VRE emergency. Unexpectedly, widespread use of vancomycin was followed by a notable transition toward Gram-negative and opportunistic organisms. In summary, vancomycin may only be considered in patients with documented MRSA colonization, β-lactam allergy, or selected revision procedures, but its widespread empirical use as a first-choice therapy is not supported. Full article

Oral cavity lesions in sea turtles, particularly Caretta caretta, are relatively rare, and are typically linked to infectious agents as well as anthropogenic factors, including ingestion of marine debris or fishing gear. This report describes a juvenile Caretta caretta found in the northern Adriatic Sea with severe oral lesions affecting the choanae, alimentary tract, and larynx. A comprehensive clinical and histopathological evaluation was conducted, which revealed traumatic injuries caused by the ingestion of a polychaete, Laetmonice cf. hystrix. Mucosal biopsies in the areas of spine penetration revealed the presence of strong sub-epithelial inflammation, characterised by micro-abscesses. In addition, around some fragments of spines, the formation of microgranulomatous lesions with a tendency to encapsulation was observed. Treatment protocol involved the removal of embedded spines and administration of a broad-spectrum antibiotic to prevent secondary infections. Recently, the detection in polychaetes of the aetiological agents of two newly emerging diseases of shrimps, suggests that these worms can be a host or/and passive carrier of these pathogens. This case study underscores the necessity to consider both biological and anthropogenic factors in diagnosing and managing oral lesions in marine turtles. Furthermore, it draws attention to the ecological risks posed by interactions between sea turtles and benthic organisms. Full article

Background/Objectives: Vertebroplasty (VP) and kyphoplasty (KP) are widely performed minimally invasive procedures for osteoporotic vertebral compression fractures and vertebral metastases. Although generally safe, postoperative surgical site infections (SSIs) can lead to severe complications. The true incidence of SSIs and optimal prophylactic antibiotic strategies remains unclear. This study evaluated SSI incidence and the impact of antibiotic timing and type using a nationwide quality assessment (QA) database in South Korea. Methods: We analyzed data from the 7th to 9th QA waves of the Health Insurance Review and Assessment (HIRA) Service, including 23,868 patients who underwent VP or KP. SSI incidence was compared across antibiotic timing groups (preoperative-only, postoperative-only, and combined) and antibiotic types. Multivariate logistic regression identified independent risk factors for SSIs. Results: SSI occurred in 47 patients (0.20% of 23,868 procedures). No infections were observed in the preoperative-only group, compared with 0.36% in the postoperative-only group and 0.19% in the pre- and postoperative group. The lowest incidence (0.16%) was seen with first- or second-generation cephalosporins. Multivariate analysis found no significant difference between the preoperative-only and the combined regimens, nor between first-/second-generation cephalosporins and broad-spectrum antibiotics. However, surgery at a tertiary hospital (aOR: 3.566) and malnutrition (aOR: 2.915) were independently associated with increased SSI risk. Conclusions: This nationwide study, the largest to date on VP and KP, demonstrated that SSIs are rare (0.2%). A single preoperative dose of first- or second-generation cephalosporins was as effective as combined or broader-spectrum regimens. Targeted preventive measures may be warranted for high-risk groups such as patients with malnutrition or those treated in tertiary hospitals. Full article

Background/Objectives: The purpose of this review was to determine the impact of osteoporosis on outcomes after surgery for cervical deformity. Cervical deformity involves abnormal curvature or misalignment of the cervical spine, often resulting in a significant loss of quality of life and requiring surgical correction. While osteoporosis has been associated with hardware failure including screw loosening and cage migration in spine surgery, its role in cervical deformity remains unclear. Existing studies report mixed findings with regard to postoperative sequelae in patients with osteoporosis undergoing surgical correction of cervical deformity. Methods: A systematic review using PRISMA guidelines and MeSH terms involving spine surgery for cervical deformity and osteoporosis was performed. The Medline (PubMed) database was searched from 1990 to August 2022 using the following terms: “osteoporosis” AND “cervical” AND (“outcomes” OR “revision” OR “reoperation” OR “complication”). This review focused on radiographic outcomes, as well as post-operative complications. Results: Eight studies were included in the final analysis. Three papers assessed risk factors for the development of post-operative distal junctional kyphosis (DJK), but only one found osteoporosis as a predictor for DJK. Although three studies found that osteoporosis was not significantly associated with the incidence of surgical complications, one highlights osteoporosis as a predictor of complications at 90 days postoperatively (p < 0.001) and another associates osteoporosis with overall poor outcomes (p = 0.021). Furthermore, one study assessing the relationship between osteoporosis and reoperation found no association. Conclusions: Overall, our systematic review suggests that in patients undergoing surgery for cervical deformity, osteoporosis is not predictive of the need for reoperation or the development of postoperative complications, such as DJK, dysphagia, superficial infection, and others. These findings highlight the need for further study regarding the role of osteoporosis in surgical correction of cervical deformity. Full article

Background/Objectives: Veillonella species are Gram-negative, non-motile, non-fermentative, obligate anaerobic cocci. They are typically considered commensals of the oral cavity, respiratory tract, genitourinary tract, and gastrointestinal tract. It may be a rare cause of dental infections and discitis/spondylodiscitis. Methods: We report the case of an 80-year-old patient diagnosed with discitis caused by Veillonella parvula, isolated from blood. In addition, we performed a comprehensive literature review summarizing all reported cases of discitis or spondylodiscitis caused by Veillonella species. Results: In our case, antimicrobial susceptibility testing was performed using the Kirby–Bauer disc diffusion method. Based on the results, the patient was treated with amoxicillin/clavulanate, which led to a favourable clinical outcome. A review of the literature revealed that, to date, only 14 cases of spondylodiscitis or discitis caused by Veillonella spp. have been reported. Potential risk factors for Veillonella spp. bacteremia were identified in only 9 cases. The most commonly affected site was the lumbar or lumbosacral spine. Magnetic resonance imaging was consistently regarded as the diagnostic gold standard. Most patients presented with localized pain. The overall therapeutic approach generally consisted of an initial course of intravenous antibiotics, typically ceftriaxone administered either as monotherapy or in combination with metronidazole, followed by an oral regimen with amoxicillin/clavulanate, given alone or alongside metronidazole. Conclusions: Spondylodiscitis due to V. parvula remains extremely rare. Although antimicrobial susceptibility patterns remain heterogeneous, beta-lactams, particularly amoxicillin/clavulanate, appear effective in most cases, and treatment regimens typically involve an initial intravenous phase followed by oral therapy. Full article

Background: Spondylodiscitis is a growing infectious condition with significant morbidity. The impact of multifocal involvement remains understudied. This study compared 90-day all-cause readmission rates between patients with solitary versus multifocal spondylodiscitis and identified the associated risk factors. Methods: A retrospective analysis of the 2020 Nationwide Readmissions Database was conducted. Adult patients with primary spondylodiscitis were identified using ICD-10 codes and categorized into solitary or multifocal involvement groups. Demographic, clinical, and surgical data were extracted. Descriptive statistics and multivariate logistic regression were performed. Results: Of 6132 patients, 585 (9.6%) had multifocal disease. Multifocal patients were slightly younger (58.9 vs. 60.3 years; p = 0.049); had longer hospital stays (14.7 vs. 11.4 days; p < 0.001), time to readmission (p < 0.001); and surgery was more common (p = 0.003). Ninety-day readmission rates were similar (35.6% vs. 34.9%; p = 0.766). Type 2 diabetes was the only comorbidity significantly associated with multifocal disease (p = 0.020) and independently predicted readmission (aOR 1.236). Surgery and longer length of stay were protective (aOR 0.743; 0.0990). Conclusions: Multifocal spondylodiscitis is relatively common but not an independent risk factor for readmission. Readmission rates of both cohorts were similar. Surgery and prolonged hospitalization may reduce readmission risk. Full article

Background: Surgical site infections (SSIs) are a significant postoperative complication in instrumented lumbar spine surgery, and the selection and duration of appropriate prophylactic antibiotics are key to their prevention. The aim of our study was to evaluate the effectiveness of various prophylactic antibiotics, primarily cefazolin and clindamycin, as well as the role of the duration of antibiotic prophylaxis in the development of SSI in instrumented lumbar spine surgeries through retrospective analysis. Methods: We performed a retrospective analysis of data from 915 patients who underwent instrumented lumbar spine surgery between 2016 and 2024 in a university center database. We examined the incidence of SSI according to the type of antibiotic used (cefazolin 1 g or 2 g, or clindamycin 0.6 g) and the duration of prophylaxis (single dose versus 72 h administration). We used the Fisher test and Welch test as a statistical analysis to examine the differences between SSI rates. Results: The incidence of SSI was 11.7%. We measured a significantly lower infection rate with cefazolin compared to clindamycin (OR = 0.45; 95% CI: 0.23–0.94; p = 0.0206), regardless of the duration of antibiotic administration. The 72 h cefazolin prophylaxis showed a slight but statistically insignificant advantage over single dose prophylaxis. The risk of SSI was significantly higher in multi-segment surgeries (p = 0.0005). Conclusions: Cefazolin is a more effective prophylactic antibiotic than clindamycin during instrumented lumbar spine surgery. The duration of antibiotic administration has less influence on the risk of SSI development; therefore, short-term, adequate-dose cefazolin prophylaxis is recommended, which also minimizes the risk of antimicrobial resistance and side effects. Full article

Infections following spinal surgery can result in potentially devastating complications. An accurate microbiological diagnosis is crucial for proper treatment. Sonication is a diagnostic method that can be beneficial in patients with acute or low-grade infections. This study aimed to assess the sensitivity and effectiveness of sonication as a method for diagnosing spinal implant infections in cases of both suspected and unsuspected infections during spinal surgical revision. We conducted a retrospective observational study that included all patients who underwent revision spinal surgery between March 2011 and October 2022. We collected the implants and surrounding tissues from these patients for microbiological analysis. The implant sonication was performed according to a previously published protocol. Patients were categorised into those undergoing surgical revision for suspected spinal implant infection (SSII) and those for non-suspected spinal implant infection (NSSII). We collected comprehensive patient data, including demographics, risk factors, Charlson Comorbidity Index (CCI), surgical details, microbiological findings, antibiotic regimens, and clinical outcomes. Sensitivity and specificity analyses were conducted on both sonicated and non-sonicated samples. A total of 158 patients met the inclusion criteria; 51 of them were diagnosed with infection during surgery revision. Patients with SSII had higher CCIs than those with NSSII. The sensitivity was significantly higher in sonicated samples (68.6%; 95% CI: 55.9–81.4%) than in non-sonicated samples (42%; 95% CI: 28.3–55.7%). The specificities were similar, with sonicated samples at 93.5% (95% CI: 88.8–98.1%) and non-sonicated samples at 99.05% (95% CI: 97.2–100.9%). Combining both methods resulted in sensitivity and specificity rates of 76% (95% CI: 64.2–87.8%) and 93.3% (95% CI: 88.2–98.1%), respectively. Methicillin-susceptible Staphylococcus aureus (MSSA) was common in SSII, whereas Cutibacterium acnes and coagulase-negative Staphylococcus (CNS) were predominant in NSSII. This study supports the routine use of implant sonication as a valuable supplementary method for peri-implant tissue cultures, especially for identifying low-grade spinal implant infections. Full article

Human Immunodeficiency Virus (HIV) infection remains a major global health issue, with effective antiretroviral therapy (ART) extending life expectancy but also increasing age-related issues like osteopenia and osteoporosis. This cross-sectional study examines bone mineral density (BMD) and related risk factors in Romanian HIV-positive patients, emphasizing regional and therapy influences. The patients varying in HIV infection duration underwent DXA scanning to measure BMD in the lumbar spine, femoral neck, and total femur. A high prevalence of low BMD, especially in the lumbar spine, was identified along with significant associations between reduced BMD and factors such as smoking, alcohol use, vitamin D deficiency and serum phosphorus levels. ART like Protease Inhibitors and Nucleoside Reverse Transcriptase Inhibitors were linked to increased bone loss, emphasizing the multifactorial nature of osteoporosis in HIV-infected individuals and underscore the importance of regular BMD assessments, lifestyle adjustments, and careful management of antiretroviral therapy to minimize fracture risk and enhance overall health and quality of life. Full article

Background: Native vertebral osteomyelitis (NVO) presents diagnostic and therapeutic challenges requiring adherence to complex clinical guidelines. The emergence of large language models (LLMs) offers new avenues for real-time clinical decision support, yet their utility in managing NVO has not been formally assessed. Methods: This study evaluated four LLMs—Consensus, Gemini, ChatGPT-4o Mini, and ChatGPT-4o—using 13 standardized questions derived from the 2015 IDSA guidelines. Each model generated 13 responses (n = 52), which were independently assessed by three orthopedic surgeons for accuracy (4-point scale) and comprehensiveness (five-point scale). Results: ChatGPT-4o produced the longest responses (428.0 ± 45.4 words), followed by ChatGPT-4o Mini (392.2 ± 97.4), Gemini (358.2 ± 60.5), and Consensus (213.2 ± 68.8). Accuracy ratings showed that ChatGPT-4o and Gemini achieved the highest proportion of “Excellent” responses (54% and 51%, respectively), while Consensus received only 20%. Comprehensiveness scores mirrored this trend, with ChatGPT-4o (3.95 ± 0.79) and Gemini (3.82 ± 0.68) significantly outperforming Consensus (2.87 ± 0.66). Domain-specific analysis revealed that ChatGPT-4o achieved a 100% “Excellent” accuracy rating in therapy-related questions. Statistical analysis confirmed significant inter-model differences (p < 0.001). Conclusions: Advanced LLMs—especially ChatGPT-4o and Gemini—demonstrated high accuracy and depth in interpreting clinical guidelines for NVO. These findings highlight their potential as effective tools in augmenting evidence-based decision-making and improving consistency in clinical care. Full article

Spinal injuries have a major impact on patients’ quality of life due to the implacable consequences they bring, such as reduced mobility and loss of flexibility, in most cases requiring surgery to restore spinal stability and functionality. In this respect, spinal fixation devices represent an important strategy to stabilize the spine after severe injuries or degenerative conditions, providing structural support and preserving spinal function. However, at the moment, the materials used to manufacture spinal implants present numerous disadvantages (e.g., Young’s modulus larger than cortical bone, which can produce bone resorption and implant enlargement) that can lead to implant failure. In this context, nanotechnology can offer promising solutions, bringing improved properties (e.g., biocompatibility, osseointegration, and increased mechanical performance) that increase the potential for obtaining devices customized to patients’ needs. Thus, the present work aims to present an overview of the types of nanocoating surface modification, the impact of rough and porous implant surfaces, and the integration of bioactive nanoparticles that reduce the risk of infection and implant rejection. In addition, incorporating 3D printing technology and the use of biodegradable materials into the discussion provides a valuable perspective for future studies in this field. Although the emerging results are encouraging, further studies to assess the long-term safety of implant coatings are needed. Full article

Background: The atlanto-axial segment is highly mobile and, therefore, prone to instability in the setting of inflammatory disease, infection, tumor or trauma. While minimally invasive surgical (MIS) techniques have gained acceptance in the thoracolumbar spine due to their advantages over traditional approaches, their use at the atlanto-axial segment is controversial due to the surgical risk associated with its complex anatomy. To evaluate the current evidence on MIS atlanto-axial fixation, we carried out a systematic review of the literature and compared the reported results with those of open procedures. Methods: This systematic review follows PRISMA-DTA 2020 guidelines. A comprehensive search was conducted in November 2023 across PubMed/Medline, Google Scholar and clinicaltrials.gov using specific keywords related to minimally invasive atlanto-axial fixation. Data regarding study characteristics, patient demographics, surgical techniques, and outcomes were extracted from included studies. Results: This systematic review included 13 articles reporting on the results of surgery in 305 patients, in whom a total of 683 screws were inserted through a posterior MIS approach. N = 162 screws were inserted using the Harms–Goel technique, while N = 521 were placed using the Magerl technique. N = 40 screws were inserted using navigation guidance, while N = 643 were introduced with fluoroscopy assistance. Eight screws were misplaced. A Vertebral Artery (VA) injury was reported in three patients. With a mean value of 26.2 ± 15.3 months, the rate of fusion ranged between 80% and 100%. Conclusions: This study highlights the potential of MIS for posterior atlanto-axial fixation, which was achieved using Magerl transarticular screws in a large majority of cases. Despite technical challenges, MIS approaches appear to achieve satisfactory clinical and radiological outcomes with complication rates similar to those of open techniques. Future studies may help refine the indications for MIS and identify those cases better suited for open approaches. Full article

Background/Objectives: Malnutrition is common in patients with metastatic spine tumors (MSTs) and may adversely affect surgical outcomes. The Prognostic Nutritional Index (PNI) reflects both nutritional and immune status, but its role in palliative MST surgery is not well defined. The aim of this study was to investigate the association between preoperative the PNI and postoperative outcomes, including functional recovery and survival, in patients undergoing palliative surgery for MSTs. Methods: A brief description of the main methods or treatments applied. This can include any relevant preregistration or specimen information. Results: Patients with a higher PNI (≥42.8) demonstrated significantly better postoperative ambulation and longer overall survival compared to those with a lower PNI (<42.8). The higher PNI group showed earlier ambulation (p = 0.017) and longer median survival (30.7 vs. 7.0 months; p = 0.002). Multivariate analysis confirmed that a PNI ≥ 42.8 was an independent predictor of early ambulation (HR = 1.516; 95% CI: 1.010–2.277; p = 0.045) and prolonged survival (HR = 0.955; 95% CI: 0.927–0.985; p = 0.003). No significant association was found between the PNI and postoperative infections. Conclusions: The PNI is a simple and effective predictor of postoperative functional recovery and survival in patients undergoing palliative surgery for MSTs. Its routine preoperative assessment may help stratify surgical risk, guide nutritional interventions, and optimize clinical outcomes in this vulnerable population. Full article

Introduction: Spinal thrust manipulation has been found useful for improving pain and mobility in musculoskeletal conditions of the thoracic spine. This case report highlights the importance of incorporating high-velocity low-amplitude (HVLA) thrust manipulation to the mid-thoracic rib articulations in a patient experiencing thoracic spine pain associated with an acute onset of osteomyelitis at levels T7–T9. Detailed Case Description: A 49-year-old female who was recovering from osteomyelitis of the thoracic spine 4 months prior was referred to physical therapy by her neurosurgeon. Her osteomyelitis infection resulted in a bone-on-bone interaction between T7 and T9, resulting in significant thoracic spine pain. Severe restrictions in active range of motion (AROM) were found in extension and right and left rotation. At initial evaluation, the patient’s pain intensity score was 8/10 (NPRS, 0–10), the disability score was 46/50 (NDI, 0–50), and the patient-specific functional scale score was 3/10 (PSFS, 0–10). Initially, interventions included grades I-IV posterior to anterior (PA) mobilizations of the thoracic spine from levels T2 to T9, mobilization with movement of the thoracic spine for extension and rotation bilaterally, scapular stabilization, and thoracic mobility exercises. Treatment progressed to HVLA thrust manipulation techniques targeting the costotransverse articulations of ribs 2–9. Discussion: Following the initial eight treatment sessions over 4 weeks, minimal improvement was observed for pain (NPRS from 8/10 to 6/10), disability (NDI from 46/50 to 34/50), and thoracic extension AROM (13°). However, during visits 9–16, the addition of HVLA thrust manipulation targeting the costotransverse articulations resulted in significant improvements in pain, disability, and AROM. The patient was subsequently discharged after 16 visits and able to return to a full workday as a teacher without any thoracic pain or ROM restrictions. At the 6-month follow-up, the patient outcomes remained, and she was working with no restrictions. Conclusion: The addition of HVLA thrust manipulation targeting the mid-thoracic rib articulations to a program of non-thrust mobilization and exercise appeared useful for improving pain, disability, and range of motion in a patient recovering from osteomyelitis of the thoracic spine. Full article

Background/Objectives: Surgical site infections (SSIs) in spine surgery pose significant risks, including neurological deficits, prolonged hospital stays, and increased healthcare costs. SSIs are classified by their location and include superficial, deep, and organ/space (OS) infections. In spine surgery, OS SSIs include osteomyelitis, discitis, and spinal epidural abscess. These infections are difficult to treat with conservative measures, impart significant morbidity, and incur increasing hospital costs. Despite advancements in surgical technique and infection control, the literature is conflicting on which factors are associated with a significant increase in risk of SSIs after spinal surgery. There is also a significant gap in the literature in defining the risk factors specific to OS SSIs. This study aims to identify risk factors associated with SSI after spine surgery at a single institution, as well as provide descriptive characteristics of patients with OS SSIs. Methods: This retrospective study analyzed spinal surgeries performed at a multi-center, single-institution between 1 January 2019 and 9 February 2025. Neurosurgical patients who underwent spine surgery were identified by ICD-10 procedure and diagnosis codes. Surgical infections were classified based on the National Healthcare Safety Network (NHSN) criteria. Univariate and multivariate analyses were performed to assess associations between patient demographics, comorbidities, and infection risk. Results: Of the 2363 unique spinal surgery patients, 39 developed infections, with 14 meeting the NHSN criteria for OS SSI. The overall rate of SSIs at this institution was 1.65%. Significant risk factors for developing an SSI included cardiovascular disease (p = 0.017) and COPD (p = 0.012). Multivariate analysis confirmed both risk factors identified in the univariate analysis as independent risk factors, with adjusted odds ratios of 1.97 (p = 0.033) and 2.072 (p = 0.041), respectively. The commonly cultured pathogens included Staphylococcus aureus, Staphylococcus epidermidis, and methicillin-resistant Staphylococcus aureus. Conclusions: Male sex, diabetes mellitus, gastroesophageal reflux disease, hyperlipidemia, hypertension, hardware placement, and a history of smoking were more common in patients with SSI. In the OS SSI subgroup, cardiovascular disease and COPD were associated with an increased risk of developing an OS SSI. Future research is needed to investigate more detailed risk factors and include mitigating factors of OS infection into the analysis. Full article